Tungsten Putty by PineSpeed - World's Best Pinewood Derby Weight & Fishing Lure Gear Accessory PRO GRADE QUALITY PineSpeed is THE name in Tungsten Putty! Using a 99% pure blend of tungsten to putty and a polymer binder, our Tungsten Putty is more dense than iron or steel, allowing you to pack more weight with less volume! MALLEABLE No matter if youre looking for more stick, or something a little firmer, weve got what you need. Simply apply heat for a stickier, more malleable texture, or cold to harden the tungsten where you need it, and in whatever shape you desire. BALANCED Nothing could be more simple. With just a pinch of our putty, easily fine tune & calibrate exact balance, center of gravity, or weight for pinewood derby cars or your fishing line and lure! THE BETTER CHOICE Were not just the run of the mill tungsten. Weve made sure that we meet and exceed all ASTM D 4236 standards to bring you the best quality available for a fair price. Best of all, 1 ounce goes a long way, as our putty is reusable and housed in an air-tight tin. GUARANTEED We take pride in what we sell, and well stand by our product. If youre not happy with your purchase, well make sure you receive a fast and courteous refund, no questions asked.